@Misc{ 
  butmae09,
  author = { Buttazzo, Giuseppe and Maestre, Faustino },
  title = { Optimal Shape for Elliptic Problems with Random Perturbations },
  journal = {  },
  year = { 2009 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/718/ },
  note = { cvgmt preprint}
}